In order to be able to use the YESAIR (pump model) in difficult to reach areas, a handheld sampling probe is available. The probe is attached to a 25.4 cm / 10 inch wand which is attached to 76.2 cm / 30 inch of tubing that fits onto the nozzle of the YESAIR and allows you to reach into and sample areas that are difficult to access. Note: The sampling probe for the YES Plus LGA is very similar to the sampling probe for the YESAIR. The YESAIR sampling probe has brass connector. Each sampling probe is specific to its device (the probe for the YES Plus LGA will not fit on the YESAIR and vice versa).